1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @build ModuleSetAccessibleTest 27 * @modules java.base/java.lang:open 28 * java.base/jdk.internal.misc:+open 29 * @run testng ModuleSetAccessibleTest 30 * @summary Test java.lang.reflect.AccessibleObject with modules 31 */ 32 33 import java.lang.reflect.AccessibleObject; 34 import java.lang.reflect.Constructor; 35 import java.lang.reflect.Field; 36 import java.lang.reflect.InaccessibleObjectException; 37 import java.lang.reflect.InvocationTargetException; 38 import java.lang.reflect.Method; 39 import java.lang.reflect.Module; 40 41 import jdk.internal.misc.Unsafe; 42 43 import org.testng.annotations.Test; 44 import static org.testng.Assert.*; 45 46 @Test 47 public class ModuleSetAccessibleTest { 48 49 /** 50 * Invoke a private constructor on a public class in an exported package 51 */ 52 public void testPrivateConstructorInExportedPackage() throws Exception { 53 Constructor<?> ctor = Unsafe.class.getDeclaredConstructor(); 54 55 try { 56 ctor.newInstance(); 57 assertTrue(false); 58 } catch (IllegalAccessException expected) { } 59 60 ctor.setAccessible(true); 61 Unsafe unsafe = (Unsafe) ctor.newInstance(); 62 } 63 64 65 /** 66 * Invoke a private method on a public class in an exported package 67 */ 68 public void testPrivateMethodInExportedPackage() throws Exception { 69 Method m = Unsafe.class.getDeclaredMethod("throwIllegalAccessError"); 70 try { 71 m.invoke(null); 72 assertTrue(false); 73 } catch (IllegalAccessException expected) { } 74 75 m.setAccessible(true); 76 try { 77 m.invoke(null); 78 assertTrue(false); 79 } catch (InvocationTargetException e) { 80 // thrown by throwIllegalAccessError 81 assertTrue(e.getCause() instanceof IllegalAccessError); 82 } 83 } 84 85 86 /** 87 * Access a private field in a public class that is an exported package 88 */ 89 public void testPrivateFieldInExportedPackage() throws Exception { 90 Field f = Unsafe.class.getDeclaredField("theUnsafe"); 91 92 try { 93 f.get(null); 94 assertTrue(false); 95 } catch (IllegalAccessException expected) { } 96 97 f.setAccessible(true); 98 Unsafe unsafe = (Unsafe) f.get(null); 99 } 100 101 102 /** 103 * Invoke a public constructor on a public class in a non-exported package 104 */ 105 public void testPublicConstructorInNonExportedPackage() throws Exception { 106 Class<?> clazz = Class.forName("sun.security.x509.X500Name"); 107 Constructor<?> ctor = clazz.getConstructor(String.class); 108 109 try { 110 ctor.newInstance("cn=duke"); 111 assertTrue(false); 112 } catch (IllegalAccessException expected) { } 113 114 try { 115 ctor.setAccessible(true); 116 assertTrue(false); 117 } catch (InaccessibleObjectException expected) { } 118 119 ctor.setAccessible(false); // should succeed 120 } 121 122 123 /** 124 * Access a public field in a public class that in a non-exported package 125 */ 126 public void testPublicFieldInNonExportedPackage() throws Exception { 127 Class<?> clazz = Class.forName("sun.security.x509.X500Name"); 128 Field f = clazz.getField("SERIALNUMBER_OID"); 129 130 try { 131 f.get(null); 132 assertTrue(false); 133 } catch (IllegalAccessException expected) { } 134 135 try { 136 f.setAccessible(true); 137 assertTrue(false); 138 } catch (InaccessibleObjectException expected) { } 139 140 f.setAccessible(false); // should succeed 141 } 142 143 144 /** 145 * Test that the Class constructor cannot be make accessible. 146 */ 147 public void testJavaLangClass() throws Exception { 148 149 // non-public constructor 150 Constructor<?> ctor 151 = Class.class.getDeclaredConstructor(ClassLoader.class, Class.class); 152 AccessibleObject[] ctors = { ctor }; 153 154 try { 155 ctor.setAccessible(true); 156 assertTrue(false); 157 } catch (SecurityException expected) { } 158 159 try { 160 AccessibleObject.setAccessible(ctors, true); 161 assertTrue(false); 162 } catch (SecurityException expected) { } 163 164 // should succeed 165 ctor.setAccessible(false); 166 AccessibleObject.setAccessible(ctors, false); 167 168 } 169 170 }